No different than breaking a "regular" or"chromoly" shaft on the trail.
Not exactly. I would be the first to admit that CV joints are really really strong and definitely stronger than a u-joint. What's different about a regular chromoly shaft is that it won't fail for the same reasons a factory shaft will fail BUT, if it were to fail, it would most likely fail at the u-joint and NOT the shaft or anywhere else. This is a pretty easy fix. A CV joint like what RCV's have will force a break to occur at the shaft or ring and pinion and that is not an easy fix. See pic below - see anything missing?
I was just pointing out the fact that if you break the RCV its going to be replaced. You may have to pay shipping, but its better than paying full price for a new shaft.
Most basic chromoly shafts offer a 10 year warranty and a few even offer a lifetime warranty just like RCV. They too will replace a shaft if you were to break one and, while you may have to pay for shipping on them as well, you will still be about $400 ahead. That's all I was trying to point out.
Everything has a weak link, you could have chromoly axles and blow an R&P. you are going to be just as screwed on the trail. I think you missed the point I was shooting for.
You're right, everything has a weak link and I would be the first to say that on a standard chromoly shaft with full circle clips, a break would still most likely be at the u-joint. To me, that's a good thing. Of course, if it were to break there, it would NOT be for the same reason that so many people break their factory shafts which only have c-clips. RCV's on the other hand eliminate the joint from being a weak link and therefore, guarantee that it'll be moved elsewhere as is shown in the image above.
Please note, I'm not trying to discourage anyone from liking RCV's, I'm just pointing out facts and backing them up. Again, they are great shafts, but so are basic chromoly shafts with full circle clips.